Try this for your IBM 39Y7381 (Artesyn 7001374-Y000) PSU. It has been translated from a German site.

"But otherwise, if you have the NT, then you look back a pin-box at the top left is 1, bottom right is 24th It must be bridged 7 with 21 and 23 are bridged by 24, then you can simply turn on the power supply line 230"

Based on that knowledge, I got it to the point of (yellow and black wires to power it on) (this power supply does NOT have a built in on/off switch)

And I used yellow and ground to power my lipo charger (HobbyKing Variable 6S)

According to the sticker on the casing, I should have 12V @ 12A.
When I power my lipo charger, all runs well..... until I pull a load over 1.5A charge rate from the power supply. It flickers a few times, and then shuts down completely. (both the power supply AND charger cut out completely)

I then have to remove the main power cable from the wall receptacle and then plug it in again for everything to fire back up. And of course the process repeats itself every time I try to charge any pack over about 1.5A

Is there a reason for this?

If my power supply is rated for 12V and 12A.... I should be able to charge a lipo battery at a very high rate (say 8A for example) without the power supply failing from over drawing, right???

One thing I also noticed before I even hooked it up to my charger, was that according to my wattmeter, I was only getting about 11.6V to begin with.

Would this be the cause?? I would imagine if I was charging a 2 cell lipo (8.6V fully charged) I wouldn't have the same problem because I would have more than enough voltage going into the charger.... where as a 3 cell (12.6V fully charged) is MORE than the voltage coming from the power supply, so its too much for the power supply to handle... am I right?

Images

Hit n Run, you have a PC power supply not a server supply. Totally different beast.

There is a ton of threads on how to make these ATX supplies work on the forums and elsewhere.

I suspect you need to load the 5V line as that is what these supplies use for regulation. Pulling a large current from the 12V line with 5V unconnected is probably causing the supply to shut down as it interprets it as a fault.

The voltage into the charger that the power supply has to deliver is not a function of what your LiPo voltage (load) is. The charger converts the voltage up or down from the 12v supply. That's how it works.

I have an unusual problem, though.
Two PSUs (IBM 39Y7381 and DPS-2500BB) blew-up in my face (on no-load) after working for a while on load. I've narrowed-down the cause to a bad Earthing. Neutral to ground is showing ~ 18VAC !!
I'm getting it corrected today.